Plasma cutters cut metal using a plasma torch. For it works, plasma has to be created. Well! Did you know what a plasma cutter is? Plasma cutting is a process that involves creating an electrical channel of super heated, electrically ionized gas, etc. Plasma cutters are a machine that is used for cutting. It gives the ability of any piece of metal cutting in a very safe manner. The plasma cutting equipment is set up so that it creates an electric circuit with the metal that is being cut. When the end of the torch is touched to the metal, the circuit is created and a spark flashes through the nozzle of the plasma torch.